Hub-Spoke Library Organizational Architecture: Structure and Information Flow in Distributed Academic Health Systems

<p dir="ltr">This figure depicts the hub-spoke organizational architecture for academic health sciences libraries serving geographically distributed academic health systems. The model features centralized, specialized expertise at the hub (systematic review support, bioinformatics consultation, scholarly communication guidance, technology infrastructure) connected to distributed spoke locations that provide local presence at clinical, educational, and research sites.</p><p dir="ltr">Key design features illustrated:</p><ul><li><b>Spoke sizing reflects service intensity:</b> Large spokes (teaching hospitals, medical school campuses) have full-time embedded librarians; medium spokes (community hospitals, regional campuses) have part-time presence; small spokes (ambulatory clinics) receive primarily virtual support.</li><li><b>Color coding indicates spoke function:</b> Blue for clinical sites, green for educational sites, and orange for research sites.</li><li><b>Bidirectional information flow:</b> Green arrows show specialized expertise flowing from hub to spokes (consultations, training, protocol support); orange arrows show complex referrals flowing from spokes to hub (questions requiring specialized expertise).</li></ul><p dir="ltr">The hub-spoke model enables academic health systems to balance centralized specialization with distributed accessibility, providing equitable service reach across all institutional sites while concentrating rare, expensive expertise where it can be leveraged system-wide. This organizational approach demonstrates a favorable return on investment (1.84-2.14:1) compared to alternatives while supporting the complete educational continuum from undergraduate through continuing medical education.</p>